7 Servicing/Maintenance
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KWP-Bloc
For dismantling and reassembly observe the exploded views and the general
assembly drawing. (
In case of damage you can always contact KSB Service.
NOTE
All maintenance work, service work and installation work can be carried out by KSB
Service or authorised workshops. For contact details please refer to the enclosed
"Addresses" booklet or visit "
NOTE
After a prolonged period of operation the individual components may be hard to
pull off the shaft. If this is the case, use a brand name penetrating agent and/or - if
possible - an appropriate puller.
7.4.2 Preparing the pump set
1. De-energise the pump set and secure it against unintentional start-up.
2. Disconnect and remove all auxiliary pipework.
3. If an oil reservoir has been fitted, drain the oil.
7.4.3 Dismantling the motor
WARNING
Motor tipping over
Risk of squashing hands and feet!
▷
Suspend or support the motor to prevent it from tipping over.
ü
The pump (set) is disconnected from the power supply.
1. Fasten a rope to motor 800 and intermediate lantern 146 and suspend it from a
suitable hoisting tackle.
2. Undo hexagon nuts 920.01.
3. Pull motor 800 with intermediate lantern 146 and discharge cover 163 out of
pump casing 101 in axial direction.
If the discharge cover is stuck, use forcing screws 901.30.
4. Undo hexagon nut 920.04.
5. Pull motor 800 out of intermediate lantern 146 in axial direction.
7.4.4 Removing the impeller
ü
1. Undo impeller screw 906.
2. Remove O-ring 412.03.
3. Pull impeller 230 off with an impeller removal tool.
4. Leave key 940.01 in the keyway.
5. Clean all components and inspect them for signs of wear.
7.4.5 Removing mechanical seal MG1-G6
ü
The impeller has been removed. (
ü
The oil reservoir has been drained.
1. Remove key 940.01.
2. Pull O-ring 412.06 and shaft protecting sleeve 524.01 with the rotating assembly
of mechanical seal 433.02 off the shaft.